Water and fuel heater



Nov. 7, 1950 V R. G. BOLIN 2,528,998

WATER AND FUEL HEATER Filed Jan. 29, 1946 FIG. 1.

7 A9 v W 5 Fla, 2.

I 95 a 2a 5 25 i 55 FIG. 3.

a Q I 7 \h 3 26 22 O b k/ a a 34 52 Z9 swam kw RALPH G. BOLIN,

Patented Nov. 7, 1950 {,FW TE t nun FUEL HEATER 1 '7 Ralph G. Bolin, Houston, Texf e n ti niranu .29,194-8,seriaino'gc ispg s My invention relates to 7 especially to heaters for water, fuel oil, natural gas and thelikef The object of my invention is to provide a heater to be heated by .means of a steam coil therein and connected to a source of liquid such as water, fuel oil, natural gas and the like to be conducted into the heater and brought into contact with the heatingcoil.

Another object of my invention is to provide a boiler heated by a steam (3011 located therein and ada pted to'heat Water, fuel oil, natural'gas and the-like conducted-into the boiler and-brought into contact with the heating pipe to savev fuel and to-prevent-difficulties arising from the effect of freezing temperatures on fuel oil, natural gas and thelike. j 1. .f 1.

Other objects of my invention may appear in thefollowing specification'describing my invention' with reference to' the accompanying. drawing illustrating a preferred embodiment of my invention. It is however to be understood that my invention is not to be limited and restricted to the exact construction and combination of parts described in the specification and shown in the drawing, but that such changes and modifications can be made which fall within the scope of the claims appended hereto.

In the drawing:

Figure 1 is a vertical sectional view through a heater according to my invention, parts being shown in elevation.

Figure 2 is a vertical sectional view of a modified form of the top of a heater according to my invention, and

' Figure 3 is a plan view of a support for a heat- ,vided on the top I l and extends therethrough; With the outer end of nipple'lfi a pipe line I! is connected, adapted to return'steam to the source thereof. (not shown). A steam coil la is firmly connected at its intake end with. the inner end of the first named nipple l3 and at its out- Diametrically opposite the nipple ill a second nipple I6 is pro 2 Claims. (oi. est-e205) heaters and" more let end with thesecond-ly named 'n'ip'ple It. A threaded hole isprovid'ed' in the top H adapted to receive the threaded stem of a pressure gauge I9. An outlet pipe 2-0 is firmly connected with the top H and communicates therethr ough with the interior of the' body Nflwhen the top I I is placed in position on the top end of the body- H]. r This is done af-te'rfthe heating coil l 8 is connected to tlie nipples {"3 and "IB-"anfd then the top is, permanently fastened to the body by welding theflange f2 to the bodylflas indicated at2l there? by producing a leak-proof'connection betweentop Hand body l9. Asafety valve -2-2is connectedwiththe out-let'pipe 20 which leads to any place (not shown) where the heated contents ofthe boiler, such'as water, fuel oiLnatur'al' gas and the like,maybeused. j

A bottom section 23, having the shape of an inverted dome, rests on supporting legs-24 It} is securely connected-to the bottom end of the bod'ydll by welding, as indicated at- 25-, whereby a leak-proof connection between the body [0 and the bottom 23 is obtained. At its upper end the bottom has aninwardly extending circumferential flange 26. A suspended spider 21 has an outerring 28 adapted to rest on the flange 26. From this ring 28 a plurality of arms 29 extend radially and inwardly and carry on their inner ends a somewhat elevated ring 30. The heating coil I8 .rests on the arms 29 and the elevated ring 38 extends upwardly into said coil to center it within body [0 as shown in Figure 1.

Adjacent the lowest point of the bottom 23 an outlet 3| extends in a, substantially horizontal direction therefrom, having a spigot 32 on its outer end. 4

Adjacent the upper edge of the bottom an inlet pipe 33 connects with the interior of the bottom.

7 This inlet pipe leads from a source of liquid, such 31' is arranged between theflange 35, and the circumferential top portion 36. A plurality of bolts 38 havng nuts 39 thereon seat the top firmly on top of the gasket 3'5, forming a leak-proof connection between top Ha and body Ill-a.

7 The heater, as described, operates as follows:

The valve I5 is opened and steam'flows through the pipe 14 into the heating coil l8 and returns to its source through the outlet pipe, [1. Liquid to be heated may be pumped through the inlet pipe 33 into the boiler where it will be heated by the steam in the heating coil 18 and will then leavethe boiler through the outlet pipe 20.

Spigot 32 is used for draining and cleaning the boiler, and the check valve 34 prevents back pressure in the pumpinot shown) feeding the liquid to be heated into the boiler.

Having described my invention, what I claim and desire to secure by Letters Patent is:

1. A heater for fluid comprising an upright hollow cylinder having a closed top and having closed inverted hemispherical bottom, a spider supported across the interior of said cylinder at the level of said inverted hemispherical bottom, annular flange rising centrally from said spider and providing a seat, a helical heating fluid coil having its lower end supportably confined within said seat whereby said coil is centered in said hollow cylinder, said heating coil rising to a point near said closed top of the cylinder, the upper end ofsaid coil having an inlet terminal rising through said top for connection with a source of heating fluid, the lower end of said coil having a straight portion rising within said coil and having an outlet terminal on its upper end rising through said top, an inlet conduit for fluid to be heated traversing the side of said cylinder below said spider whereby fluid to be heated is charged into said cylinder to rise to the top thereof, and

an outlet conduit for heated fluid traversing said cylinder top. 7

2. A heater for fluid comprising an upright hollow cylinder having a closed top and having closed inverted hemispherical bottom, a spider supported across the interior of said cylinder at the level of said inverted hemispherical bottom,

annular flange rising centrally from said spider 4 and providing a seat, a helical heating fluid coil having its lower end supportably confined within said seat whereby said coil is centered in said hollow cylinder, said heating coil rising to a point near said closed top of the cylinder, the upper end of said coil having an inlet terminal rising through said top for connection with a source of heating fluid, the lower end of said coil having a straight portion rising within said coil and having an outlet terminal on its upper end rising through said top, an inlet conduit for fluid to be heated traversing the side of said cylinder below said spider whereby fluid to be heated is charged into said cylinder to rise to the top thereof, and an outlet conduit for heated fluid traversing said cylinder" top, said inlet conduit having a check valve therein precluding escape of fluid there through from the interior of said cylinder, and a safety valve in said outlet conduit preventingv escape of fluid from the interior of said cylinderbelow a predetermined pressure and permitting" escape of heated fluid from the interior of said.

cylinder above the predetermined pressure.

RALPH G. BOLIN..

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 

